Derrick.



P'ATENTBDIJAN. 20, 1903..

EL P.v4 ARSNEAUl Nmvlasw.

DERRI'GK.

AP'PLIOATION FILED MAR. 7,1902.

N0 MODEL.

@vih/:mozo Y llrvirnn rara Arnim* OFFICE.

EDWARD P. ARSNEAU, OF DULUTII, MINNESOTA.

DERRICK.

SPECIFICATION' forming part of Letters Patent No. 718,897', datedJanuary 20, 1903.

Application filed March 7,1902. Serial No. 97.159. (No model.)

To @E whom t may concern/.-

Be it known that 1, EDWARD P. ARSNEAU, a citizen of the United States,residing at Duluth, in the county of St. Louis and State of Minnesota,have invented certain new and useful Improvements in Derricks; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to improvements in derricks, and moreparticularly to derricks of the portable type which are comparativelylight and capable of being moved about from place to place, especiallyin lumbering-camps and the like.

It consists in a derrick formed with a base or drag, a derrick-framemounted thereon, and a support or horse on said drag for holding thederrick-frame at various angles with respect to the drag.

It also consists incertain other novel constructions, combinations, andarrangements of parts, as will be hereinafter fully described andclaimed.

In the accompanying drawings, Figure 1 is a perspective view of theder-rick constructed in accordance with my invention. Fig. 2 is a detailView in elevation of the derrick-frame.

The derrick forming the subject-matter of this invention is constructedwith a baseframe or drag 1, formed of side beams or timbers 2 2 andtransverse connecting brace beams or timbers 3 and 4. The ends of thesetransverse beams are preferably let into mortises formed in theuppersurface of the side beams or runners 2 and are rigidly securedtherein. This frame is furtherbraced bydiagonally-arranged brace-rods 5,extending between diagonally opposite corners of the drag. The sidebeams or runners 2 of the drag are preferably rounded upon their undersurfaces at each end, so as to facilitate their being drawn over thesurface of the ground. The said frame is adapted to be anchored atdifferent places by pivoted dogs or spuds 6, which have their outer freeends rounded, so as to readily engage the ground or other surface uponwhich the derrick is resting. These spuds are preferably pivoted tobrackets carried by the end cross-timbers 3 of the frame or drag 1.Cables or trace-chains 7 are secured at each end of the dragin anysuitable manner, so that a team may be hitched thereto for moving thederrick from place to place. One of the side beams or runners of thedrag 1 is preferably made considerably larger and heavier than the otherrunners of said drag to assist in counterbalancing the weight of thederrick proper, 8, which rests at its lower end upon said large runner.This derrickframe 8 may be arranged to loosely engage mortises 9, madein the said large runner, or may be hinged thereto and otherwise movablysecured to the same. When the derrick 8 is merely loosely mounted uponthe said large runner, its lower ends are held against accidentaldisplacement by slack chains, as 10 10.

The derrick-frame consists of two beams converging at their upper endsand being secured together by any suitable encircling means-asn forinstance, a ring 11. A bolt 12 is preferably passed through the ring andthe holes composing the said derrick, so as to hold the parts in properposition. A ring 13 is also fitted upon the upper tapering end of thederrick 8 for attaching one end of the hoisting-rope14thereto.Thehoisting-ropepasses thence around a block 15 and then through a block16, suspended from a clevis 17, which clevis is pivoted upon the ends ofthe bolt 12. The hoisting-rope 14 then passes downwardly and through ablock 18, which is suspended in a portion of the frame of the derrickmechanism. The hoisting-rope may then be carried outwardly from the saidderrick-frame to any suitable point for hitching it to a team orapplying any other power mechanism thereto. The block 15 carries'acrotch chain or cable 19, provided with hooks 20 at its lower end forengaging logs or other articles to be raised and moved. These hooks arealso provided with ropes or cables 2l, by which the log or other articlemay be directed in its movement. The upper end of the derrick 8 ispreferably anchored by means of an anchor guy-rope 22, which is securedto the bolt 12 by means of a clevis 23. The other end of the guy-rope 22is secured to a tree, stump, or any xed Object for properly bracing thederrick when in use.

The derrick-frame in the present invention IOO I is preferably used in aposition considerably inclined with respect to the base-frame or drag l,and it rest-s upon and is adapted to be supported at different heightsby means of a horse-24. The horse 24 consists of nprights 25 and crossbrace pieces or bars 26 and 27. While the uprights 25 of the horse maybe made parallel throughout, they are preferably slightlyconverged-toward each other at their upper ends. The lower ends of theupright-s 25 may be reduced and set loosely in mortises 28, formed inthe small runner 2 of the drag, or they may be made to t snugly inmortises in said runner, or, further, they may be hinged thereto, ifdesired, all within he spirit of the present invention. Thelower brace26 of the horse is preferably rigidly secured to the uprights 25, whilethe upper brace 27 is removably bolted or otherwise fastened to the saiduprights. The uprights are provided with several apertures, as 29, intowhich attaching-bolts may be inserted, so that the brace 27 may beadjusted to different points'upon the horse and will thereby be made tosupport the derrick at different inclinations with respect to thebase-framev or drag l. I preferably provide the uprights 25 of the horsewith a series of lugs 30, which are .arranged immediately below theapertures 29,so that the cross brace or bar 27 will rest upon them inits various adjusted positions. While it is not absolutely essentialthat these lugs be employed, yet they serve to hold the brace rod or bar27 in position and reinforce the bolts or pins which engage theapertures 29,. Such lugs would be in position to sustain the bulk of theweight imposed upon the cross-bar 27 and relieve the strain upon themeans for fastening the said bar ofthe uprights. Of course it will beapparent that by raising or lowering the cross-bar 27 to differentheights upon the uprights 25 the derrick will be supported at differentinclinations with respect to the frame or drag l. The horse 24 ispreferably braced in its upright position by means of cables or links3l, which extend from the upper ends of the uprights 25 to the largerunner 21 of the drag.

It will be seen that by the arrangement of the parts above described thederrick overhangs one side of the drag, and the runner 2, which is madelarge and heavy, will counterbalance the overhanging portionA of thederrick when the drag is being moved from place to place. The wholestructure is simple in form and makes it possible to construct such aderrick of rough timbers, saving greatly in the expense of producingsuch machinery and preventing the necessity of transporting sleds intothe forest regions.

While I have shown and described the derrick as mounted upon abase-frame the side timbers of which are fashioned into runners, stillif found more convenient or desirable the base may be set up on otherrunners of sleds of any suitable construction or on trucks or wheels,such alterations not affecting in the least the spirit of the invention.

I-Iaving fully described my invention, What I claim as new, and desireto secure by Letters Patent of the United States, is-

l. A derrick, comprising a base-frame or drag, having two approximatelyparallel runners, one relatively larger than the other, a derrick-framemounted on the larger runner and capable of being removed therefrom, andl au adjustable support or horse for holding the derrick at variousinclinations with respect to the base mounted on the smaller runner,substantially as described.

2. A derrick comprisingl a base-frame or drag formed of side runners,one of said runners being made large and heavier than the other, aderrick resting upon said large runner and projecting beyond theopposite side of the frame, a support or horse for holding the saidderrick at various inclinations with respect to the base-frame or drag,the large runner of said drag counterbalancing the derrick when the sameis being moved from place to place, and hoisting-tackle carried by thesaid derrick, substantially as described.

3. A derrick comprising a frame or drag, a derrick proper mounted uponone side thereof and overhanging the other side, a support upon saidother side of the base-frame arranged beneath the derrick, adjustablemeans upon said support for determining the angle of inclination of thederrick, and hoisting means carried by the derrick, substantially asdescribed.

. 4. A derrick, comprising a base-frame having two approximatelyparallel runners, one of relatively greater size than the other, aderrick-frame mounted on said larger runner and capable of being removedtherefrom, of a support or horse mounted on a smaller runner andcomprising uprights suitably secured to the said runner, and anadjustable bar or base extending from one upright to" the other forsupporting the derrick proper in its adjusted position, substantially asdescribed.

5. A derrick comprising a base-frame or drag, a derrick proper mountedthereon, an adjustable support or horse beneath said derrick and havinga series of apertures extending through the same, a series of lugs orbraces beneath said apertures, and an adjustable cross brace or baradapted to be secured to said aperture so that it may be adjusted atdifferent heights and rest upon the aforesaid lugs, thus supporting thederrick at different inclinations, and hoisting means carried by thesaid derrick, substantially as described.

6. A derrick comprising a base-frame or drag formed with side runnersand cross connecting-bars, dogs or spuds carried thereby forautomatically preventing the movement of the drag when in use, aderrick-frame earried by the drag consisting of two poles resting attheir lower ends on one of said runners IOO IOS

IIO

and meeting at their ends, an inclosing means or ring surrounding theupper ends for holding them together, and means for supporting clevisesand tackle from the upper end of said derrick, substantially asdescribed.

7. A derrick formed with a drag or supporting base-frame, aderrick-frame mounted thereon composed of poles joined together at theirupper ends, their lower separated ends resting upon the said drag, acollar or ring for holding the upper ends of the poles together, asecond ring at the upper end for supporting one end of a hoisting-cable,a bolt passing through said ring and the poles ou the derrick andprojecting beyond the same,

clevises carried by the said pole, hoisting engaging a log or othertackle to be moved, substantially as described.

8. A derrick comprising a base-frame or drag, a derrick-frame mountedthereon, a su pporting-horse formed with uprights, a bar or brace-pieceadapted to be secured to the said horse at different heights forcorrespondingly holding the derrick in different positions, a series oflugs formed on the horse for supporting the said bar in its differentpositions, and means for bracing the horse with respect to the drag orbase-frame, substantially as described.

In testimony whereof I hereunto affix my signature in presence of twoWitnesses.

EDWARD P. ARSNEAU.

Witnesses:

JAMES F. WATSON, H. F. LANNIGAN.

